FEATURES High efficiency: 95.3%@ 11Vin, 3.3V/35A out 94.3%@ 11Vin, 2.5V/40A out 93.0% @ 11Vin, 1.8V/45A out 89.3%@ 11Vin, 1.0V/45A out Small size and low profile: 25.4x12.7x12.2mm (1.00” x 0.50” x 0.48”) (SMD) Surface mount No minimum load required Input UVLO, Output OCP/SCP, OVP Parallel Units ISO 9000, TL 9000, ISO 14001 certified manufacturing facility D12S1R845D, Non-Isolated, Power Block DC/DC Power Modules: 7.0~13.2Vin, 0.6V~1.8V/45A, 2.5V/40A, 3.3V/35A The Delphi D12S1R845D, surface mounted, power block is the latest offering from a world leader in power systems technology and manufacturing — Delta Electronics, Inc. The D12S1R845D is the latest offering in the DXP45 family which was developed to address the ever-growing demands of increased current and power densities in networking applications while providing maximum flexibility for system configuration, its benefits can easily be applied to other applications transcending various market segments. The DXP45 family, containing all necessary power components and boasting of a 2 USABLE (55˚C, 200LFM) current density of 90A/in and a power density of up 3 to 231W/in , is a building block for a new open Digital Power Architecture developed to work with either digital or analog controllers. Measured at 0.5”Wx1.0”Lx0.48”H and rated at 45A of output current, the D12S1R845D is designed to operate with an input voltage from 7V to 13.2V and provide an output voltage adjustable from 0.6V to 3.3V. Each D12S1R845 contains two power trains which can provides either an interleaved single output, or two independent outputs. Multiple D12S1R845D can be used in parallel to serve applications where output currents are in excess of 45A with limitation imposed only by the control circuit, analog or digital. Designed for superior price/performance, the D12S1R845D can provide 3.3V and 35A full load in ambient temperature up to 55˚C with 200LFM airflow. APPLICATIONS Telecom / DataCom Distributed power architectures Servers and workstations LAN / WAN applications Data processing applications DATASHEET DS_D12S1R845D_05202014 Delta Electronics, Inc. TECHNICAL SPECIFICATIONS TA = 25°C, airflow rate = 200 LFM, Vin = 7~13.2Vdc, nominal Vout and Fsw=400kHz unless otherwise noted. PARAMETER NOTES and CONDITIONS D12S1R845D Min. ABSOLUTE MAXIMUM RATINGS Input Voltage (Continuous) Operating Temperature Storage Temperature INPUT CHARACTERISTICS Operating Input Voltage Maximum Input Current Environment temperature 0 -40 -40 7.0 Output Voltage Ripple and Noise Output Voltage Overshoot Output Current Range Transient Response Inductor Value Inductor DCR Inductor Peak Current EFFICIENCY Max. Units 15 85 125 Vdc °C °C 13.2 18.0 V A 3.0 Pin 3 1.8 6.7 Vin=11.0V Total Regulation over load, line and temperature 0.6 -1 6x 330μF Tan Capacitor and 220μF ceramic capacitor, BW=20MHz @ turn on 0.6V~1.8Vout, single output/ dual output 2.5Vout, single output/ dual output 3.3Vout, single output/ dual output Vin = 11.0V;Iout Step:50％~100％~50%Iout;Slew/Rate: 1A/uS Cout: 6x 330μF Tan Capacitor and 220μF ceramic capacitor, 7.0 2.4 7.5 Vdc 3.3 +1 V %V 15 0 0 0 0 mVpp 0.5 45/22.5 40/20 35/17.5 %V A A 200 mVpp 340 0.52 nH mΩ A Inductor temperature of 125°C Normal input,Io=Io,max, Ta=40℃,100LFM V 2.0 Pin 5 (reference to ground) Vin=7V, Vo=1.0V, Io=45A Vin=11.0V, Vo=1.0V, Io=45A Vin=13.2V, Vo=1.0V, Io=45A Vin=7.0V, Vo=3.3V, Io=35A Vin=11.0V, Vo=3.3V, Io=35A Vin=13.2V, Vo=3.3V, Io=35A FEATURE CHARACTERISTICS Operating Frequency GENERAL SPECIFICATIONS MTBF Weight 11.0 Vin=7V, Vout=3.3V, Iout=35A PWM Rising Threshold PWM Falling Threshold Typical Tri_state Shutdown Window Gate Voltage OUTPUT CHARACTERISTICS Output Voltage Adjustable Range Total Output Voltage Regulation Typ. 24.5 89.5 89.3 89.0 95.6 95.3 94.9 % % % % % % 400 kHz 5.69 7.5 M hours grams Block diagram of D12S1R845D 2 ELECTRICAL CHARACTERISTICS CURVES 92.00% 91.00% Efficiency (%) 90.00% 89.00% 88.00% 87.00% 86.00% 85.00% 84.00% 83.00% 82.00% 5 10 15 20 25 30 Output Current (A) 7.0Vin 11.0Vin 35 40 45 13.2Vin Figure 1: Efficiency vs. load current for minimum, nominal, and maximum input voltage, 1.0V output voltage at 25°C., Fsw=400kHz 95.00% 94.00% Efficiency (%) 93.00% 92.00% 91.00% 90.00% 89.00% 88.00% 87.00% 86.00% 5 10 15 20 25 30 Output Current (A) 7.0Vin 11.0Vin 35 40 45 13.2Vin Figure 2: Efficiency vs. load current for minimum, nominal, and maximum input voltage, 1.8V output voltage at 25°C. Fsw=400kHz 3 ELECTRICAL CHARACTERISTICS CURVES 96.00% 95.00% Efficiency (%) 94.00% 93.00% 92.00% 91.00% 90.00% 89.00% 88.00% 87.00% 5 10 15 20 25 Output Current (A) 7.0Vin 11.0Vin 30 35 40 13.2Vin Figure 3: Efficiency vs. load current for minimum, nominal, and maximum input voltage, 2.5V output voltage at 25°C. Fsw=400kHz 96.00% 95.00% Efficiency (%) 94.00% 93.00% 92.00% 91.00% 90.00% 89.00% 88.00% 87.00% 5 10 15 20 25 Output Current (A) 7.0Vin 11.0Vin 30 35 13.2Vin Figure 4: Efficiency vs. load current for minimum, nominal, and maximum input voltage, 3.3V output voltage at 25°C. Fsw=400kHz 4 ELECTRICAL CHARACTERISTICS CURVES Figure 5: Output Ripple & Noise Figure 6: Output Ripple & Noise Input Voltage=11V,Vout=1.0V, Iout=0 A, Input Voltage=11V, Vout=1.0V, Iout=45 A Figure 7: Output Ripple & Noise Figure 8: Output Ripple & Noise Input Voltage=11V,Vout=1.8V, Iout=0 A, Input Voltage=11V, Vout=1.8V, Iout=45 A Figure 9: Output Ripple & Noise Figure 10: Output Ripple & Noise Input Voltage=11V,Vout=2.5V, Iout=0 A, Input Voltage=11V, Vout=2.5V, Iout=40 A 5 Figure 11: Output Ripple & Noise Figure 12: Output Ripple & Noise Input Voltage=11V,Vout=3.3V, Iout=0 A, Input Voltage=11V, Vout=3.3V, Iout=35 A ELECTRICAL CHARACTERISTICS CURVES Figure 13: Dynamic response: Load Step: 100% ~ 50%~100% (Vin =11.0V; 1.0V Output Voltage; slew rate=1A/uS) Figure 14: Dynamic response: Load Step: 100% ~ 50%~100% (Vin =11.0V; 1.8V Output Voltage; slew rate=1A/uS) Figure 15: Dynamic response: Load Step: 100% ~ 50%~100% (Vin =11.0V; 2.5V Output Voltage; slew rate=1A/uS) Figure 16: Output Fall Time: 1 pcs Converter on test board. (Vin =11.0V; 3.3V Output Voltage; Iout = 35A) 6 DESIGN CONSIDERATIONS TEST CONFIGURATIONS COPPER STRIP V o Resistive 330uF*6 220uF SCOPE Load Tan MLCC GN D Figure 17: Peak-peak output ripple & noise and startup transient measurement test setup Note: 6pcs 330μF TAN and 220μF MLCC capacitor in the module output. Scope measurement should be made by using a BNC connector. DISTRIBUTION LOSSES VI Vo II Io LOAD SUPPLY The power module should be connected to a low ac-impedance input source. Highly inductive source impedances can affect the stability of the module. An input capacitance must be placed close to the modules input pins to filter ripple current and ensure module stability in the presence of inductive traces that supply the input voltage to the module. FEATURES DESCRIPTIONS Over-Current Protection To provide protection in an output over load fault condition, the unit is equipped with internal over-current protection. When the over-current protection is triggered, the unit will be shutdown and restart after a period of time. The units operate normally once the fault condition is removed. GND CONTACT RESISTANCE Figure 18: Output voltage and efficiency measurement test setup Note: All measurements are taken at the module terminals. When the module is not soldered (via socket), place Kelvin connections at module terminals to avoid measurement errors due to contact resistance. ( Vo Io ) 100 % Vi Ii Vdriver * Idriver Input SCOPE Cin Cout 16V/100uF * 1pcs Aluminum Vo Figure 19: Peak-peak Input ripple & noise measurement test setup Note: 1pcs 1,00μF Aluminum in the module input. Scope measurement should be made by using a BNC connector. 7 THERMAL CONSIDERATIONS Thermal management is an important part of the system design. To ensure proper, reliable operation, sufficient cooling of the power module is needed over the entire temperature range of the module. Convection cooling is usually the dominant mode of heat transfer. Thermal De-rating The module’s maximum hot spot temperature is +115°C. To enhance system reliability, the power module should always be operated below the maximum operating temperature. If the temperature exceeds the maximum module temperature, reliability of the unit may be affected. Hence, the choice of equipment to characterize the thermal performance of the power module is a wind tunnel. Thermal Testing Setup Delta’s DC/DC power modules are characterized in heated wind tunnels that simulate the thermal environments encountered in most electronics equipment. The following figures show the wind tunnel characterization setup. The power module is mounted on delta test board and is vertically positioned within the wind tunnel. Figure 21: Temperature measurement location The allowed maximum hot spot temperature is defined at 115℃ Airflow Top view Airflow Front view Side view Figure 20: Wind Tunnel Test Setup 8 THERMAL CURVES D12S1R845A Output Current vs. Ambient Temperature and Air Velocity @Vin = 7V, Vo=3.3V (Either Orientation) Output Current(A) D12S1R845A Output Current vs. Ambient Temperature and Air Velocity @Vin = 7V, Vo=2.5V (Either Orientation) Output Current(A) 40 35 Natural Convection 30 Natural Convection 35 30 25 100LFM 100LFM 25 20 200LFM 200LFM 20 15 300LFM 15 10 10 5 5 0 0 25 30 35 40 45 50 55 60 65 70 25 75 80 85 Ambient Temperature (℃) Figure 22: Output current vs. ambient temperature and air velocity@ Vin=7V, Vout=3.3V (Either Orientation) 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (℃) Figure 25: Output current vs. ambient temperature and air velocity@ Vin=7V, Vout=2.5V (Either Orientation) D12S1R845A Output Current vs. Ambient Temperature and Air Velocity @Vin = 11V, Vo=3.3V (Either Orientation) Output Current(A) 30 D12S1R845A Output Current vs. Ambient Temperature and Air Velocity @Vin = 11V, Vo=2.5V (Either Orientation) Output Current(A) 40 35 Natural Convection 35 Natural Convection 30 30 25 100LFM 100LFM 25 20 200LFM 200LFM 20 300LFM 300LFM 15 400LFM 15 400LFM 500LFM 10 10 5 600LFM 5 0 0 25 30 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (℃) Figure 23: Output current vs. ambient temperature and air velocity@ Vin=11V, Vout=3.3V (Either Orientation) 25 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (℃) Figure 26: Output current vs. ambient temperature and air velocity@ Vin=11V, Vout=2.5V (Either Orientation) D12S1R845A Output Current vs. Ambient Temperature and Air Velocity @Vin = 13.2V, Vo=3.3V (Either Orientation) Output Current(A) 30 D12S1R845A Output Current vs. Ambient Temperature and Air Velocity @Vin = 13.2V, Vo=2.5V (Either Orientation) Output Current(A) 40 35 35 30 Natural Convection Natural Convection 30 25 100LFM 100LFM 25 20 200LFM 200LFM 20 300LFM 300LFM 15 400LFM 400LFM 15 500LFM 500LFM 10 10 5 600LFM 5 0 0 25 30 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (℃) Figure 24: Output current vs. ambient temperature and air velocity@ Vin=13.2V, Vout=3.3V (Either Orientation) 25 30 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (℃) Figure 27: Output current vs. ambient temperature and air velocity@ Vin=13.2V, Vout=2.5V (Either Orientation) 9 D12S1R845A Output Current vs. Ambient Temperature and Air Velocity @Vin = 7V, Vo=1.8V (Either Orientation) Output Current(A) D12S1R845A Output Current vs. Ambient Temperature and Air Velocity @Vin = 7V, Vo=1.0V (Either Orientation) Output Current(A) 45 45 Natural Convection 40 40 Natural Convection 35 35 30 100LFM 25 200LFM 20 300LFM 100LFM 30 25 200LFM 20 400LFM 300LFM 15 15 500LFM 10 10 5 5 0 0 25 30 35 40 45 50 55 60 65 70 25 75 80 85 Ambient Temperature (℃) Figure 28: Output current vs. ambient temperature and air velocity@ Vin=7V, Vout=1.8V (Either Orientation) 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (℃) Figure 31: Output current vs. ambient temperature and air velocity@ Vin=7V, Vout=1.0V (Either Orientation) D12S1R845A Output Current vs. Ambient Temperature and Air Velocity @Vin = 11V, Vo=1.8V (Either Orientation) Output Current(A) 30 D12S1R845A Output Current vs. Ambient Temperature and Air Velocity @Vin = 11V, Vo=1.0V (Either Orientation) Output Current(A) 45 45 Natural Convection 40 40 Natural Convection 35 35 100LFM 30 30 100LFM 25 25 200LFM 200LFM 20 300LFM 20 400LFM 15 300LFM 15 500LFM 10 600LFM 10 5 5 0 0 25 30 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (℃) Figure 29: Output current vs. ambient temperature and air velocity@ Vin=11V, Vout=1.8V (Either Orientation) 25 45 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (℃) Figure 32: Output current vs. ambient temperature and air velocity@ Vin=11V, Vout=1.0V (Either Orientation) D12S1R845A Output Current vs. Ambient Temperature and Air Velocity @Vin = 13.2V, Vo=1.8V (Either Orientation) Output Current(A) 30 D12S1R845A Output Current vs. Ambient Temperature and Air Velocity @Vin = 13.2V, Vo=1.0V (Either Orientation) Output Current(A) 45 40 Natural Convection 40 Natural Convection 35 35 30 30 100LFM 25 200LFM 20 100LFM 25 200LFM 300LFM 20 300LFM 400LFM 15 15 500LFM 10 10 600LFM 5 5 0 0 25 30 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (℃) Figure 30: Output current vs. ambient temperature and air velocity@ Vin=13.2V, Vout=1.8V (Either Orientation) 25 30 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (℃) Figure 33: Output current vs. ambient temperature and air velocity@ Vin=13.2V, Vout=1.0V (Either Orientation) 10 MECHANICAL CONSIDERATIONS SURFACE-MOUNT TAPE & REEL 11 MECHANICAL DRAWING ** ALL PIN ARE COPPER WITH MATTE TIN PLATED. 12 PART NUMBERING SYSTEM D 12 Type of Product Input Voltage D - DC/DC modules 12 - 7 ~13.2V S 1R8 45 D Number of Outputs Output Voltage Output Current Option Code S - Single 1R8 - 0.6~3.3V 45 - 45A max D - Standard MODEL LIST Model Name Input Voltage D12S1R845D 7.0 ~ 13.2Vdc Output Voltage Output Current 0.6V ~ 3.3V 45A max RoHS Total Height Efficiency 7Vin, 3.3Vout @ 35A RoHS 6/6 0.48" 95.5% CONTACT: www.deltaww.com/dcdc Email: [email protected] USA: Telephone: East Coast: 978-656-3993 West Coast: 510-668-5100 Fax: (978) 656 3964 Europe: Phone: +31-20-655-0967 Fax: +31-20-655-0999 Asia & the rest of world: Telephone: +886 3 4526107 ext 6220~6224 Fax: +886 3 4513485 WARRANTY Delta offers a two (2) year limited warranty. Complete warranty information is listed on our web site or is available upon request from Delta. Information furnished by Delta is believed to be accurate and reliable. However, no responsibility is assumed by Delta for its use, nor for any infringements of patents or other rights of third parties, which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Delta. Delta reserves the right to revise these specifications at any time, without notice. 13